i believe mushroom brand Viceroy was just advert watch for cigarettes brand, like Camel, Kent and other "gift watch for 5 packs..." lolSorry if I repeated some. I honestly have not seen any of those listed earlier except for MZI & Chronos. Too many to keep track of.
Always at Market:
Heuer & Lambelet(no longer produced)
Picard & Cie
Contempo Group Inc.:
nevertheless good eyes for the "mushroom" watches